That's true, the RNG factor has been multiplied by the new drop system and it's frustrating to get sub par drops in either of the endgame activities. It shouldn't be that hard for them to code it in so that it guarantees a higher light level drop of gear. That way there's still the item/perk RNG to allow for some surprise/disappointment. Doesn't have to be 320 necessarily, just at least X light level higher than the max item you have in that slot/inventory/vault.